We have a requirement to create an allocation group by season, but season is not allowed field to be used in the grouping rule setup in temporary grouping. I considered adding to table J_3AGRFD_W in SM30 since a maintenance view exists, but it appears that SAP doesn't support this. I also noticed that there appear to be 10 customer fields CUFLD_01 to CUFLD_10, but I've never used these and can't find any supporting documentation.
Is there anyone out there that's had a similar requirement or that's used any of these fields? I'd like to know what the process steps are.